Not That Simple: The Metallicity Dependence of the Wide Binary Fraction Changes with Separation and Stellar Mass

@article{Niu2022NotTS,
  title={Not That Simple: The Metallicity Dependence of the Wide Binary Fraction Changes with Separation and Stellar Mass},
  author={Zexi Niu and Haibo Yuan and Yilun Wang and Jifeng Liu},
  journal={The Astrophysical Journal},
  year={2022},
  volume={931}
}
The metallicity dependence of the wide binary fraction (WBF) is critical for studying the formation of wide binaries. While controversial results have been found in recent years, here we combine the wide binary catalog recognized from Gaia EDR3 and stellar parameters from LAMOST to investigate this topic. Taking the bias of the stellar temperature at given separations into account, we find that the relationship between the WBF and metallicity depends on the temperature for the thin disk at s… 

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